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2439489 = 31371881
BaseRepresentation
bin1001010011100101000001
311120221100110
421103211001
51111030424
6124141533
726510133
oct11234501
94527313
102439489
111416908
129978a9
136754b0
14477053
15332c29
hex253941

2439489 has 16 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 1478400.

The previous prime is 2439487. The next prime is 2439491. The reversal of 2439489 is 9849342.

It is an interprime number because it is at equal distance from previous prime (2439487) and next prime (2439491).

It is not a de Polignac number, because 2439489 - 21 = 2439487 is a prime.

It is a super-2 number, since 2×24394892 = 11902213162242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2439487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2329 + ... + 3209.

It is an arithmetic number, because the mean of its divisors is an integer number (222264).

22439489 is an apocalyptic number.

It is an amenable number.

2439489 is a deficient number, since it is larger than the sum of its proper divisors (1116735).

2439489 is a wasteful number, since it uses less digits than its factorization.

2439489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its digits is 62208, while the sum is 39.

The square root of 2439489 is about 1561.8863595025. The cubic root of 2439489 is about 134.6169111957.

The spelling of 2439489 in words is "two million, four hundred thirty-nine thousand, four hundred eighty-nine".

Divisors: 1 3 13 39 71 213 881 923 2643 2769 11453 34359 62551 187653 813163 2439489